Cavalier of Flame {2}{R}{R}{R}
Creature — Elemental Knight
{1}{R}: Creatures you control get +1/+0 and gain haste until end of turn.
When this creature enters, discard any number of cards, then draw that many cards.
When this creature dies, it deals X damage to each opponent and each planeswalker they control, where X is the number of land cards in your graveyard.
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Cards that do something similar expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Seasoned Pyromancer 90%
$8.47#9756
"When this creature enters, discard two cards, then draw two cards. For each nonland card discarded this way, create a 1/1 red Elemental creature token."
Rix Maadi Reveler 90%
$0.22#21641
"When this creature enters, discard a card, then draw a card. If this creature's spectacle cost was paid, instead discard your hand, then draw three cards."
Cinderheart Giant 87%
$0.23#18899
"When this creature dies, it deals 7 damage to a creature an opponent controls chosen at random."
Kinetic Augur 87%
$0.23#18825
"When this creature enters, discard up to two cards, then draw that many cards."
Azra Bladeseeker 83%
$0.02#29094
"When this creature enters, each player on your team may discard a card, then each player who discarded a card this way draws a card."
Veteran Explorer 83%
$0.38#6116
"When this creature dies, each player may search their library for up to two basic land cards, put them onto the battlefield, then shuffle."
Rampant Rejuvenator 83%
$1.29#3251
"When this creature dies, search your library for up to X basic land cards, where X is this creature's power, put them onto the battlefield, then shuffle."
+1 more matching line
Ambitious Augmenter 83%
$0.27#15890
"When this creature dies, if it had one or more counters on it, create a 0/0 green and blue Fractal creature token, then put this creature's counters on that token."
Ruination Rioter 82%
$0.19#24656
"When this creature dies, you may have it deal damage to any target equal to the number of land cards in your graveyard."
Cathedral Membrane 82%
$0.25#17684
"When this creature dies during combat, it deals 6 damage to each creature it blocked this combat."
Yavimaya Elder 81%
$0.25#3412
"When this creature dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle."
Feral Ghoul 81%
$3.55#4051
"When this creature dies, each opponent gets a number of rad counters equal to its power."
Nested Shambler 81%
$0.24#4089
"When this creature dies, create X tapped 1/1 green Squirrel creature tokens, where X is this creature's power."
Termagant Swarm 81%
$2.34#6499
"When this creature dies, create a number of 1/1 green Tyranid creature tokens equal to this creature's power."
Pink Horror 81%
$0.86#10088
"When this creature dies, create two 2/2 blue and red Demon Horror creature tokens named Blue Horror with "Whenever you cast an instant or sorcery spell, this token deals 1 damage to any target.""
Elenda's Hierophant 81%
$4.29#1886
"When this creature dies, create X 1/1 white Vampire creature tokens with lifelink, where X is its power."
Liberated Livestock 81%
$0.31#17456
"When this creature dies, create a 1/1 white Cat creature token with lifelink, a 1/1 white Bird creature token with flying, and a 2/4 white Ox creature token. For each of those tokens, you may put an Aura card from your hand and/or graveyard onto the battlefield attached to it."
Celes, Rune Knight 80%
$1.56#5241
"When this card enters, discard any number of cards, then draw that many cards plus one."